On 08/05/2015 12:50, Jim GM4DHJ ... wrote:

Does anybody know of a cordless transmitter and receiver that doesn't eat
batteries? ......the ones I have had you couldn't keep up with the battery
replacement .....

The OWL ones seem to last plenty long enough on their batteries -
roughly a year or so.

What model have you had trouble with and what sort of batteries?

They all tend to be very low current draw but need full voltage to have
decent display contrast and as such do not like rechargeable batteries
at all. Initial terminal voltage is already too low to work properly.

--
Regards,
Martin Brown